Giving a new meaning to 'flash photography', pictures of three Greenwich students posing topless as they travel the globe have started a worldwide craze.

Olivia Edgington, 20, Lydia Buckler, 21, and Ingvild Marstien Olsen, 20, who all attend Trinity Laban, unleashed their "Topless Tour" while in Norway two years ago.

The women, who describe the fad as "uniting people across the globe to feel the freedom and share their beauty with the world," have stripped in Oslo, Berlin and London, posting pictures of themselves on The Topless Tour Facebook and Instagram sites.

And their photos have now inspired women from all over the planet to go bare-chested and share the results.